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Can Intense Exercise Increase Your Risk for a Heart Attack?

The American Heart Association has cautioned that, "Exercise, particularly when performed by unfit individuals, can acutely increase the risk of sudden cardiac death and acute myocardial infarction in susceptible people." However, a recent review of 48 research articles found no reduction in lifespan, no matter how much a person exercises

Sleep to Recover from Hard Exercise

Sleeping can help to prevent exercise injuries. Healthy U.S. soldiers in training are less likely to suffer exercise-related injuries such as fractures, sprains and muscle strains when they sleep at least eight hours at night.

Should You Carry Weights while Walking or Jogging?

The only advantage to exercising while carrying weights is that you can get more exercise while moving slowly. To strengthen your heart, you have to exercise vigorously enough to increase your heart rate at least 20 beats a minute above resting. How fast your heart beats depends on how much blood it has to pump to your body.

Don’t Use Aspirin or NSAIDs for Muscle Pain from Exercise

Some athletes and exercisers take pain medication (aspirin or NSAIDs) because they think it may prevent muscle soreness or will help them to heal faster after a workout. However, taking pain medicines before or during exercise will not block pain, help you to exercise longer or recover faster from exercise.

Runner’s Heart: The Consequences of Competitive Exercise

Medical researchers agree that exercising from the early years into old age helps to prevent heart attacks, strokes and cancers, but this month a study from The University of Manchester showed that long-term intense training for racing in animals can damage the atrial-ventricular node that regulates the frequency of heart beats to cause heart block.

Creatine

Creatine is a substance found in muscle cells that helps your muscles produce energy, particularly while lifting heavy weights or exercising intensely. Your body makes creatine from three amino acids (protein building blocks) called L-arginine, glycine, and L-methionine. You also get creatine when you eat animal protein: meat, poultry or seafood.

What to Eat and Drink for Hot Weather Exercise

You don't need special sports drinks or power bars. Even the most elite athletes can get the nutrients they need from ordinary foods, water and salt. Healthy and fit people usually don't need to drink or eat when they exercise at a casual pace for less than two hours.

Why Humans Can Run Marathons and Apes Cannot

Extensive research by Dr. Ajit Varki at UC/San Diego suggest that 2-3 million years ago, our pre-human ancestors had a single genetic mutation that could explain why humans can outrun their primate relatives.

High Blood Sugar Limits Benefits from Exercise

A study from Harvard Medical School shows that a high rise in blood sugar after meals can limit increases in your ability to take in and use oxygen during exercise. This means that if your diet causes high blood sugar levels when you eat, you lose one of the major health benefits of exercise.

Temperature During Exercise

You sweat more after you finish exercising than you do while you exercise. More than 70 percent of the energy that powers your muscles is lost as heat, causing your body temperature to rise during exercise. To keep your body temperature from rising too high, your heart pumps the heat in your blood from your muscles to your skin

Eat to Compete

What you eat before and during a major competition can affect your performance enough to give you an edge over your peers. The days of "carbohydrate loading" are gone, but now athletes are being lured to try the LCHF fad -- a low-carbohydrate, high-fat diet.

Running Injuries from Over-Striding

Most running injuries are caused by the high impact of your foot hitting the ground, which is determined most by the length of person's natural stride. Unnecessarily high impact can be caused by over-striding. Contrary to common belief, it is not important whether you land on the front of your foot or the heel.

The 30-20-10 Plan to Boost Your Exercise Progam

If you hate the idea of intense exercise, try the 30-20-10 Plan developed by Jens Bangsbo at the University of Copenhagen in Denmark. Dr. Bangsbo asked 132 middle-aged recreational runners to replace their casual workouts with his 30-20-10 Plan.

Mamo Wolde, Olympian

Mamo Wolde died recently at age 71. At 36, He won the 1968 Olympic marathon and the 10,000-meter silver medal in Mexico City. He spend the last part of his life in prison. He was buried with a guard of honor of some of the greatest distance runners who ever lived. In 1960, his...

Low-Carbohydrate Diets Harm Athletic Performance

A study of elite race walkers shows that a low-carbohydrate, high-fat diet will slow their race times and training. Your muscles burn primarily fat and carbohydrates for energy. You have enough fat stored in your body to exercise for many days. However, you can store only 1600-2000 calories worth of sugar (carbohydrate) in your muscles and liver, and will start to run out of your meager supply of sugar after 70 minutes of intense exercise.

Spinning Classes

Whether you're out of shape or very fit, spinning classes can help you improve. You ride a stationary bicycle in a group, with a leader who tells you what to do and plays lively music to set the tempo. Many health clubs and gyms offer these classes, and I recommend them to all of...

How to Walk Faster

To become fit you need to exercise vigorously enough to increase your heart rate by at least 20 beats a minute. Walking slowly doesn't make you fit.

Resistance Training for Endurance Sports

A recent review of 22 scientific studies shows that adding a resistance program such as lifting weights to endurance sports such as running or cycling can increase muscle size and strength, with greater benefit from low volume, high-resistance weight lifting than high volume, lower-resistance exercise.

Isometric Exercise

Can you become very strong by doing isometric exercises in which you push against something that doesn't move, such as a wall? The single stimulus to make a muscle stronger is to exercise a muscle against a resistance; therefore, you can become strong by doing isometric exercises. However, there are two drawbacks: isometrics can...

Interval Training for Sports

If you want to compete in sports that require speed, such as running, cycling, swimming, skiing, skating, or team sports such as football, basketball, baseball or hockey, you have to train at a pace fast enough to exceed your lactic acid threshold. Lactic acid threshold is the pace that causes lactic acid to...

Our New Tandem Ti-Trike

Ever since we got our first tandem trike and installed the electric motor, we have been looking for someone who would build us a custom trike. Three months ago we met the makers of Ti-Trikes at a bike show and were impressed with their all-titanium single trikes. They had never built a tandem trike but agreed to do one for us, incorporating their many design innovations as well as our specifications. They brought us our new tandem trike two weeks ago, and we are delighted.

Making Muscles Stronger

If you want to make a muscle stronger, you have to exercise it intensely enough to damage the muscle fibers and when they heal, they will be stronger than they were. You can tell you are causing muscle damage because of the burning you will feel during exercise and the soreness in that muscle you feel four to eight hours later.

What to Eat Before Prolonged Exercise

Eating a meal three hours or less before exercising can prolong your endurance and improve your performance. This applies whether you are going on a long walk, cycling, rowing, jogging, playing golf or tennis, lifting weights, or even if you are running a marathon or racing long distances on your bicycle. You have only...

Which Burns More Calories, Running or Cycling?

Have you wondered whether you burn more calories when you run or when you ride a bicycle? Running requires the same amount of energy per mile at any speed, but cycling is slowed so much by wind resistance that the faster you ride, the harder you have to pedal and more energy you use.

Resistance Exercise You Can Do at Home

Resistance exercise is the best way to slow down the loss of muscle strength that occurs with aging, and I believe that everyone should do some type of resistance exercise (moving your muscles against an opposing force) as part of their regular exercise program.

How to Start an Exercise Program

If you want to become fit and use exercise to help prevent a heart attack, first check with your doctor to make sure that you do not have anything wrong with your heart or blood vessels. Intense exercise can increase your risk for a heart attack if you already have a damaged heart.

Lactic Acid is Good for You: Why Everyone with a Healthy Heart Should Do Interval Exercise

Athletes use interval training to make themselves faster and stronger, and everyone with a healthy heart can benefit from this technique. A typical interval workout for non-competitive exercisers would be a session of jogging, walking or cycling in which they sarm up by moving slowly for about 10 minutes, pick up the pace until they feel a slight burning in their muscles (this usually takes 10-20 seconds), slow down as soon as they feel this muscle burning, and go slowly until the burning is gone and breathing is back to normal.

Inactivity Causes Muscle Loss

Even short periods of inactivity cause dramatic loss of muscle size and strength. After just two weeks of having one leg put in a cast, all 32 men in the study lost a tremendous amount in all measures of physical fitness, strength and muscle size in the immobilized leg. After six weeks of pedaling a bicycle for rehabilitation, they still did not regain all of the strength that they had lost

Lack of Vitamin D May Harm Exercisers

A study in mice suggests that having low levels of vitamin D may harm athletes and exercisers by limiting how long they can exercise. Many exercisers and competitive athletes are vitamin D deficient even if they live in the sunbelt.

Strengthen Quad Muscles to Help Your Knees

Having weak quad muscles (in the front of your upper legs) increases risk for damage to the cartilage in your knees. A study from Purdue University showed that strengthening these muscles slows down knee cartilage damage and may even improve knee function.